The consistent cold temperature of your fridge conserves the energy of your mason bee cocoons as they hibernate over winter. Storing your harvested mason bee cocoons in your fridge increases the viability of mason bee cocoons during release next spring.

The HumidiBee prevents your spring mason bee cocoons from drying out in modern low-humidity, frost-free refrigerators. Simply add a spoonful of water to the moisture-absorbing pad once a month and you'll provide a humidity level of 60-70% in your fridge set at 34-38F (1-3C).